NRS Tow Tether with CarabinerThe strong NRS Tow Tether, with built in bungee, is used with the quick release harnesses on rescue life jackets. Tow Tether lengths: 33": Stretched length is 33", unstretched is 19"53": Stretched length is 53", unstretched is 33"Add 6" to length for carabiner and metal O ring The Tow Tether, sometimes called a "cow tail," enhances towing boats in rescue situations. The stainless steel O ring includes a hook patch of "hook and loop" material that